Qmark LFK Series - Wall Heaters - Manual (Page 4)

oPerATInG
InSTruCTIonS
1. Heater must be properly installed before operation.
2. Turn power to heater on at main switch panel. Rotate the
thermostat knob fully clockwise. This should energize the
heating elements and the fan, causing air to flow from the air
discharge at the openings in the bottom of the grille.
3. After the discharge air has become warm, rotate the thermo-
stat knob to the desired position to obtain room comfort.
noTe: For best results, the heater should be left “ON” constant-
ly during the heating season as the thermostat, when properly
set, will maintain the desired temperature. In the full counter-
clockwise position the heater will remain off until the room tem-
perature drops well below freezing.
How To reset over -Temperature Safety Control:
Your heater is equipped with a manual reset thermal limit safety
control that will automatically turn the heater off to prevent a fire
if the heater overheats. This control is located on the fan panel
assembly between the element and fan blade and marked
“reSeT”. The red reset button can be seen through the front
grille when the heater is installed. To reset, allow the heater to
cool, then push the red button that is visible through the hole in
the fan panel. The heater should immediately return to normal
operation.
Special note: In addition to the over-temperature safety control,
this heater is provided with a back-up thermal fuse (one shot)
that will permanently shut the heater off if for some reason the
over-temperature safety control should not function as intended.
If this thermal fuse activates, the heater will not reset and must
be repaired by a qualified repair person.
MAInTenAnCe
InSTruCTIonS
It is important to keep this heater clean. Your heater will give you
years of service and comfort with only minimum care. To assure
efficient operation follow the simple instructions below.
user Cleaning Instructions:
1. After the heater has cooled, a vacuum cleaner with brush
attachment may be used to remove dust and lint from exterior
surfaces of the heater including the grille openings.
2. With a damp cloth, wipe dust and lint from grille and exterior
surfaces.
3. Return power to heater and check to make sure it is operat-
ing properly.
Maintenance Cleaning Instructions:
(To be performed only by Qualified Service Personnel)
At least annually, the heater should be cleaned and serviced by
a qualified service person to assure safe and efficient operation.
This should include the removal of the grille and, as necessary
the heater from the backbox to clean residue from the unit. After
completing the cleaning and servicing, the heater should be fully
reassembled and checked for proper operation.
ALL SERVICING BEYOND SIMPLE CLEANING THAT
REqUIRES DISASSEMBLY SHOULD BE PERFORMED BY
qUALIFIED SERVICE PERSONNEL.
TO REDUCE RISK OF FIRE AND ELECTRIC SHOCK OR
INJURY, DISCONNECT ALL POWER COMING TO HEATER
AT MAIN SERVICE PANEL AND CHECK THAT THE ELEMENT
IS COOL BEFORE SERVICING OR PERFORMING
MAINTENANCE.
DO NOT TAMPER WITH OR BYPASS ANY SAFETY LIMITS
INSIDE HEATER.
CAUTION - DO NOT CONTINUE TO ATTEMPT TO USE THE
HEATER IF THE SAFETY CONTROL REPEATEDLY OPER-
ATES AFTER BEING RESET. TO DO SO COULD PERMA-
NENTLY DAMAGE THE HEATER OR CREATE A FIRE OR
SAFETY HAzARD.
4
4800, 4000, & 3000 WATT HEATERS
347V, 600V
2000 & 1500 WATT HEATERS
208V, 240V, OR 277V
Element
Element
Element
GND
F.D.
F.D.
Manual Reset
Limit
Manual Reset
Limit
Fan Motor
T’Stat
Field
Wiring
Fan Motor
T’Stat